calvert



No. 608,95l. Patented Aug. 9, I898. A. W. CALVERT.

METALLIC WHEEL.

(Application filed Mar. 2, 1897.)

4 Sheets-Sheet I.

(No Model.)

m: mums areas co, FHOTO-LITHKL, WASHINGTON, u. c.

Patented Aug. 9, I898.

A. W. CALVERT.

METALLIC WHEEL.

(Application filed Mar. 2, 1897.)

(No Model.)

4 Sheets-Sheet 2.

Patented Aug. 9, I898.

A. w. CALVERT; METALLIC WHEEL. (Applicgtion filed m 2, 1897.)

4 Sheets-Sheet 3.

(No Model.)

ll z'lzesses oYouTHn wAsmuoToN. n. c.

Patented Aug. 9, I898.

A. W. CALVERT. METALLIC WHEEL.

(.Application filed Mar. 2, 1897.)

4 Sheets-Sheet 4.

(No Model.)

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ilnrrn'n STATES- PATENT Fries.

ARTHUR WOOD CALVERT, OF LEEDS, ENGLAND. I

M ETALLIC WH EEL.

SPECIFICATION forming part of Letters Patent No. 608,951, dated August 9, 1898. Application filed March 2, 1897. Serial No. 625,708. (No model.) Patented in England September 26, 1896, No. 21,379.

To all whom it may concern.-

Be it known that I, ARTHURWOOD CALVERT, a subject of the Queen of Great Britain and Ireland, residing at Leeds, in the county of York, England, have invented Improvements in Metallic Wheels, (for which Letters Patent have been granted in' Great Britain, dated September 26, 1896, and bearing No. 21,379,) of which the following is a specification.

This invention has reference to improvements in the manufacture of metallic wheels for vehicles and rolling stock of various kinds, the objects being to so construct wheels that they shall be stronger, lighter, more durable, and safer to use than those at present in use.

I attain these objects by constructing wheels as illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of a metallic wheel constructed according to this invention. Fig. 2 is a side elevation of part of a wheel of slightly-different construction. Figs. 3 to 9, inclusive, are views of various follies and spokes used in the construction of such wheels; and Figs. 10 t017, inclusive, represent various naves and means of securing the spokes thereto. l

The fellies are made either of one piece or of a number of pieces of metallic tubing or sectional metal, the ends of which are suitably joined together, a recess or recesses or an orifice or orifices of requisite shape being provided in each piece for the insertion of the end of a spoke or the ends of spokes, as the case may be.

The felly 1 (shown in Fig. 1) is made from one piece of metallic tubingbent to the required circle, and Where the ends 2 meet a butt-joint is made by inserting in one end a tightly-fitting tubular ferrule 3, which projects outwardly a certain distance therefrom, and then inserting the projecting portion of said ferrule into the other end of. the felly and brazing or otherwise securing them together.

Fig. 2 shows a portion ofa felly made from a number of pieces of metallic tube, the ends 2 of adjacent piecesbeing connected together by butt-joints made by means of tightly-fitting ferrules 3, as above described. Such fellies may have cross-section's such as shown in Figs. 3 and 5.i g

Fig. 4 representsa felly made from metal of channel-section, which is first bent to circular form and then has its meeting ends brazed or welded together. The sides 4 and 5 are then bentover toward each other, as shown in dotted lines at 6 and 7, until they meet, where they are then welded and closed down, as shown at 8, to form a tube of rectangular section. Theback of the channel 9 is innermost and has the spokes secured to it, the tire being secured to the other periphery 10. The two sides 4 and 5 may, however, be arranged to form a butt-joint at 11, where they meet and where they may then be brazed together.

Fellies 1 intended to be provided with indiarubber tires are made from metallic tubes of round section bent to circular form and jointed and have their outer periphery formed with.

an annular groove 12 to receive the tire 13, as

shown in Fig. 6.

Fellies according to this invention may also be provided on either side or both sides with annular or radial ribs or corrugations to give extra strength thereto.

The outer periphery of any of the fellies 1 may be plain, as shown at 11 in Figs. 4 and 5, or formed with one or more circumferential grooves 12, as shown in Fig. 3, that serve to retain the tire 13 in position when the tire,

which is also provided with a projecting rib or ribs 14, is heated and contracted onto the fellies, the rib or ribs 14 of the tire engaging in the said circumferential groove or grooves 12 in the folly.

The tires 13 may be bolted or riveted to the fellies 1 in the usual manner, and in that case the fellies and tires may be plain or provided with grooves and internal ribs, respectively.

The spokes 15 are made from metal tubes of any desired section, either plain or fluted lengthwise, the ends 16, that are inserted into the recesses or orificesl? in the fellies,being plain, as shown in Fig. 3, or reduced in section to form a shoulder 18, as shownin Fig. 7, or flanged, as shown at 19 in Fig. 4, and joined by brazing or riveting or otherwise to the inner periphery of the fellie's 1. In some cases they pass through the body of the fellies 1, as shown in Fig. 5. The end 20 is then made at 21 sufficiently large to fit the hole 22, made in the outer periphery of the folly for the spoke to pass through. The ends of the spokes that form a shoulder 18 may be round, as shown at 23, or of other suitable shape. The ends of the spokes that enter the recesses or orifices of the fellies or passing therethrough are brazed to the fellies, so as to be rigidly connected therewith.

The nave or hub 24: (see Figs. and 11) may be made from a metallic cylinder reduced at either or each end to any suitable shape or diameter and formed at or near the center of its length with a circumferential series of re.- cesses or orifices 26, corresponding with the ends of the spokes that they are intended to receive. The spokes after being inserted are secured in the said recess or orifices by brazing or otherwise.

Naves or hubs may in some cases be metalcastings 27 (see Figs. 12 and 13) of the required configuration, having a number of circumferential orifices 28, with inwardlyprojecting flanges 29, formed at or about the center of their length, for receiving the ends of the spokes. The spokes 15 may be secured in place by means of wedges 30, driven into the orifices in the nave or hub 24 after the spokes 15 have been inserted therein until.

the'ends 31 of the wedges project through or beyond the inwardly-projecting flanges 29 toward the center of the nave. Afterward molten metal is run into the central portion 32 of the nave or hub, and also, it may be, through holes in the wedges, so as to secure the spokes and naves firmly together, and it may at the same time leave a central passage 33 for the axle.

Other means of securing the spokes 15 to the nave or hub are shown in Figs. 14 and 15. In this case the outer periphery of the central part 34 of the nave is provided with a number of bosses 35 equal in number to the spokes, the ends of which are made round, as shown at 23 in Fig. 7. The center of each boss has a hole or recess 36 formed in it equal in diameter to the external periphery of the end of a spoke and of the required depth.

In the center of each hole or recess 36 is secured a stud 37, whose outer end 3S,which projects out of the recess, is tapered, its body orinner end being of slightly greater diameter than theinside of the round end of a spoke. The spokes are pressed onto these studs, and are thereby gradually expanded to fit tightly the holes or recesses 36.

Figs. 16 and 17 show the ends of the spokes, which may be of any desired configuration, secured to the nave or hub 24 of the wheel by means of two metallic plates 37 and 38, which are shaped so as to form a number of radial recesses 39, corresponding to the number of spokes to be used, the depth of each recess 39 in each plate 37' or 38 being equal to halt the breadth of a spoke and the width of each recess being equal to the thickness of a spoke. In the center of each plate 37 or 38 there is a hole having an outwardly-project-.

ing flange 10, which fits and is secured to the central part of the nave or hub. WVhat I claim is- 1. A metallic wheel comprising a metal felly, a hollow metal hub or nave provided with a circumferential series of holes or recesses, hollow metal spokes secured to the said felly and inserted in the said holes or recesses, wedges inserted in the hub ends of the said spokes so as to tighten them against the said hub and a mass of cast metal inserted in the said hub or nave and adapted to secure the hub and the spokes together.

2. The combination of a hub having circumferential depressions, spokes having tubular inner ends fitting the depressions, and plugs extending partially within and expand ing the tubular spoke ends, the inner ends of the plugs beyond the spoke extremities being detachably secured to the hub, substantially as shown and described.

3. The combination of a circumferentiallydepressed hollow hub, tubular spokes fitting the depressions, plugs partially within and expanding the spokes to cause them to tightly fit the hub depressions, the inner ends of the plugs extending into the hub-hollow, and a mass of cast metal within the hub and formed about the plugs, substantially as shown and described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ARTHUR WOOD CALVERT.

Witnesses:

HAMILTON TURNER, ROBERT EDWIN PEAcooK CRAVEN. 

